耀斑指个是勒拉恒星,特别是太阳个盘面或者边缘观测到个突发个闪光现象,伊会得释放出交关大个能量,喷出个粒子搭仔辐射可能会得危害地球。
对太阳来讲,太阳耀斑发生个频率随咾平均11年个活动周期变化,从太阳活跃期个一天几隻,到宁静期个一個礼拜没一個,变化交关。
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